package com.zcc.gaoji;

//测试生产者消费者问题2:信号灯法，标志位解决
public class TestPC2 {
    public static void main(String[] args) {
        TV tv = new TV();
        new Thread(new Player(tv)).start();
        new Thread(new Watcher(tv)).start();
    }
}

//生产者——>演员
class Player implements Runnable{
    TV tv;
    public Player(TV tv){
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            if (i%2==0){
                this.tv.play("快乐大本营播放中");
            }else {
                this.tv.play("抖音");
            }
        }
    }
}
//消费者——>观众
class Watcher implements Runnable{
    TV tv;
    public Watcher(TV tv){
        this.tv = tv;
    }

    @Override
    public void run() {
        for (int i = 0; i < 20; i++) {
            tv.watch();
        }
    }
}
//产品——>节目
class TV{
    //演员表演，观众等待T
    //观众观看，演员等待F
    String voice;//表演节目
    Boolean flag=true;

    //表演
    public synchronized void play(String voice){
        //演员等待
        if (!flag){
            try {
                this.wait();
            } catch (InterruptedException e) {
                throw new RuntimeException(e);
            }
        }
        System.out.println("演员表演了"+voice);
        //通知观众观看
        this.notifyAll();
        this.voice = voice;
        this.flag = !this.flag;
    }
    //观看
    public synchronized void watch(){
        //观众等待
        if (flag){
            try{
                this.wait();
            }catch (InterruptedException e){
                e.printStackTrace();
            }
        }
        System.out.println("观看了"+voice);
        //通知演员表演
        this.notifyAll();
        this.flag = !this.flag;
    }
}
